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Finding the Fourth Proportional to 117,413.15, 162,030.20 and 63,698.15

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Solution

The fourth proportional to 117,413.15, 162,030.20 and 63,698.15 is: 87,903.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,413.15 : 162,030.20 = 63,698.15 : x
  2. Step 2: Convert to fraction form
    117,413.15/162,030.20 = 63,698.15/x
  3. Step 3: Cross multiply
    117,413.15x = 162,030.20 × 63,698.15
  4. Step 4: Simplify right side
    117,413.15x = 10,321,023,159.29
  5. Step 5: Solve for x
    x = 10,321,023,159.29/117,413.15
  6. Step 6: Final answer
    x = 87,903.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.